A long-running law that has allowed U.S. intelligence agencies to collect and analyze huge amounts of overseas communications without needing search warrants is set to expire next week, and lawmakers are in a deadlock over whether to allow the Trump administration to extend it without any changes. Known as Section 702 of the Foreign Intelligence Surveillance Act (FISA), the law allows the National Security Agency, the CIA, the FBI and other federal intelligence agencies to record overseas communications that flow through the United States without needing individualized search warrants. In sweeping up much of the world’s communications, the agencies also collect unfathomable amounts of information, including phone logs and emails, on Americans who interact with people subject to surveillance overseas. This data is collected despite constitutional protections that should shield Americans and people in the United States from government surveillance.…